Pipe construction



H. NEVAL March 29, 1932'.

PIPE CONSTRUCTION Filed June 26, 1931 I 5 '7 fiiiw/ll/llllm'llllllllllzl 21mm QM Patented Mar. 29, 1932 UNITE HENRY NEVAL, OF ATTLEBORO, MASSACHUSETTS PIPE consrnuo'rron Application filed June 26,

This invention relates to an improved pipe construction whereby moisture and nicotine may be separated from the smoke and absorbed by a suitable absorbent material such as cotton or blotting paper.

My invention further relates to the provision of a novel type of tubular member which may be readily attached to any type of existing pipe for the above purpose and preferably one which may be constructed out of a single length of tubular material.

These and such other objects of my invention as may hereinafter appear will be best understood from a description of the embodiments thereof shown in the accompanying drawings. 9

Fig. 1 shows an elevational View of the pipe construction in section;

Fig. 2 shows a plan view of the pipe, a

portion thereof being in section more clearly to show the construction.

Fig. 3 is a sectional view of the pipe taken along the line 3-3, Fig. 1, looking in the direction of the arrows; and,

Fig. 4 is a detail perspective View of the absorbent retaining tube.

The pipe indicated generally by the reference numeral 1 is provided with the usual bowl 2 and stem 3 to which is attached the mouthpiece 4, the latter having the usual duct 5. For the purpose of the present invention the mouthpiece 4 is reduced adjacent to one end thereof as at 6 and the usual duct 7, through which the smoke passes from the bowl 2 into the duct or passageway 5 of the mouthpiece 4, is greatly enlarged, thus providing a chamber 8 in the stem 3 of the pipe. Within this chamber is seated a unitary, onepiece aluminum or other tubular member 9 4O composed of two tubes 10 and '11, the tube 10 being for the purpose of conducting the smoke from the duct 7 to the duct or passageway 5 provided in the mouthpiece 4; and itself constituting a duct;while the tube 11, which is considerably larger than the tube 10, has retained therein some absorbent ma terial 12 such as cotton or blotting paper. The tubes 10 and 11 of the member 9 open into a chamber 13 defined by the relatively enlarged tubular portion 14 of the member 1931. Serial No. 546,977.

9. The end of the tubular portion such a diameter as to fit snugly over the re-' duced portion 6 of the stem and frictionally engage the same; the diameter of the tubular extension 14 being slightly less than the inside diameter of the'stem 3 so that, in assembling, the member 9 may first be'assembled with the'mouthpiece 4 and thereafter the stem 3 forced over the tubular portion 14, the mouthpiece, stem and tubular member 9 being then retained in assembled position.

Preferably, the tubular portion 14 is gradually tapered, the "portion thereof having the greater diameter being the edge 15, which, when the pipe is assembled rests against an annular shoulder 16 provided by reducing the mouthpiece adjacent to the stem. By tapering the member 9 means are provided for detachably retaining the mouthpiece 4 assembled with the stem 8 and with the mem- 7 her 9 frictionally and removably retained therebetween, although this tapering may be dispensed with if desired.

The chamber provided by the lower tube 11 and the absorbent material 12 retained therein, performs two functions; namely: to absorb saliva which during the smoking of the pipe may, due to gravity, run back along the duct 5, whereupon said saliva falls into the chamber 13 after which it is absorbed by the material 12 and furthermore, the nicotine which is drawn from the bowl 2 through the 9is of duct 7, passes into the chamber 8 where it is either absorbed by the absorbent material 12 adjacent to the duct 7, or passes along the duct provided by the'upper tube 10 and then into the chamber 13 where it may be carried by the saliva into contact with the material 12 which absorbs the nicotine.

It will be noted upon inspection of Fig. 1

that the duct 7 is in alignment with the lower tube 11 and the absorbent material 12 contained therein; consequently, when the smoke is drawn through the duct 7 any nicotine contained therein comes into immediate contact with the absorbent material 12 and is retained thereby.

While my improved tubular member 9 may be constructed in any suitable fashion, it is preferably constructed from a length of tubing of substantially the desired length of the finished article. For this purpose suitable shaping tools are provided which are adapted to be brought into a contact with the outer end 5 of the tubular member 9 from opposite portions while the tubular member is suitably held to crimp in or press in on oppositely disposed sides of the tubing simultaneously into the crimped portions 18 to divide the 1 outer end of the tubular member 9 into the upper smoke tube 10 and the lower absorbent material retaining tube 11 and I preferably shape my tools as to supply a gradua'l'taper to the member 9 during this process.

15 It is apparent therefore that I have provided a novel type of pipe structure and tubufar member for use in a pipe which 'may be readi'lyinse'rt'ed in any pipe between the bowl and mouthpiece by merely inserting the tubular portion 14: thereof over the reduced portion 6 of the mouthpiece and suitably enlarging by a suitable tool such as a gimlet or knife thestem duct into the chamber 8 for the reception of the outer end of the tubular member 9 including the smoke tube 10 and the absorbent material retaining tube 11.

Although in the foregoing description, the Various parts have been referred to in specific terms,-nevertheless there is no intention thereby to limit the invention otherwise than by the specific recitations in the claims themselves.

hat I claim is: 1. A tubular one-piece member for use in a pipe constructed of a single length o'f'tubularmaterial having the side Wall of the outer end thereof crimped in from oppositely disposed portions thereof-to form a'tube for the passage of smoke and a tubeadapted to re- 40 tainabsorbent material therein in the outer end thereof and an enlarged tubular chamber of the approximate size of the tube on the inner endthereof, said tubular member being tapered towards the outer end thereof.

4 2. A'tubular one-piece member for use in a pipe constructed of a single length of tubular material having the side Wall of the outer end thereof crimped in from oppositely disposed portions thereof to form a tube for the passage of smoke and atube adapted to retain absorbent material therein in the outer end thereof and an enlarged tubular chamber of the approximate size of the tube onthe inner end thereof. In testimony whereo fI affix my signature.

HENRY NEVAL. 

